So, I've got a Toneport GX and was very satisfied until couple of weeks ago when I reinstalled Windows on my PC. I had very little latency, everything worked great soundwise. Then I reinstalled windows, installed toneport drivers and all audio started to pop and glitch, even windows sounds, mp3s, youtube videos. I thought, it could be because I installed WinXP Home Edition with no service packs, so I got myself a Pro Edition, installed SP3, K-Lite, even mainboard sound drivers, just in case. Downloaded most recent Line 6 drivers, tried the older ones, and nothing. It still pops even with the buffer lengths and sizes maxed out. Did an optimization of everything, but I don't really think that's the issue, since I remember recording with no problem while watching HD videos and having some serious animated windows themes and such. During playback in all daws I use, popping is.... tolerable, but not perfect, nor good. During recording, popping, actually, constant short pauses in sound become ten times worse.

I only have a usb ADSL modem plugged into the usb ports other than toneport, but again, it used to work properly with a printer, webcam, mp3 player and similar devices plugged in. There's an online competition that ends in a couple of days that I'd like to enter, but these issues make recording impossible. Hope I get some info and advice here.